Improvement in machines for perforating paper



L. FRANCIS.

Machine for Perforating Paper. N0. 164,289 Pateniedlune8,,1875.

THE GRAPHIC C0.PHOTO -L TEL39 A41 PARK PLACEJLY.

UNITED STATES PATNT OFFICE,

I LEWIS FRANCIS, OF NEW YORK, N. Y.

IMPROVEMENT IN MACHINES FOR PERFORATING PAPER.

Specification forming part of Letters Patent No. 164,289, dated June 8,1875 application filed May 15, 1875.

To all whom it may concern:

Be it known that I, LEWIS FRANCIS, of the city, county, and State of NewYork, have invented a certain new and useful Improvement in Machines forPerforating Paper and other Materials, of which the following is aspecification:

This invention is illustrated in the accompanying drawing, in which-Figure 1 represents a front elevation. Fig, 2 is a cross-section in theplane of the linew m. Fig. 1. Fig. 3 is a side elevation, part of theframe-work being broken away to expose the cutters.

Similar letters indicate corresponding parts.

My invention relates to improvements in that class of machines for whichLetters Patent of the United States were granted to William Braidwood,August 25, 187 4, No. 154,450, and in which I have a joint interest withsaid Braidwood and Cyrus H. Loutrel. I have found by experience thatwith the devices used in these machines it is difficult to guide a sheetof paper through to the cutters with the required degree of exactness inorder to produce a straight line of perforations, and to overcome thisdifiiculty is the object of my invention.

To this end my invention consists in a guide mechanism constructed of afixed and a loose roller, which revolve in surface contact with eachother, the fixed roller being geared in such a manner that it, togetherwith the loose roller, has a like superficial speed to the cutters ofthe machine, while, by means of the rollers, the sheet of paper or othermaterial to be perforated is accurately and evenly guided through thecutters. The loose roller is connected with the cutter-shaft in such away that it partakes of the rising and falling movement of the shaft, inorder to admit of removin g or changing the position of the paper thatis being perforated. The connection of the loose roller with thecutter-shaft is effected by means of yokes and of arms fastened to theyokes, and which form bearings for the loose roller. The yokes arepivoted to the machine-frame, and are arranged in such a mannerrelatively to the cutter-shaft that when the shaft rises it carries withit the yokes, the arms, and the loose roller. The lower ends of theyoke-arms have the form of hooks, in which the loose roller is journaledin such a manner that the roller is removable, while the said arms arefastened to the yokes through the medium of lock-nuts, by means of whichthe hooks may be adjusted with proper relation to the loose roller. I

In the drawing, the letter A designates the frame-work of my machine,forming bearings for the cutter-shaft B and the cam-shaft O. Ddesignates the cutters, any number of which may be used, and which havethe form of a wheel provided with M-shaped teeth. The cutters perforatethe paper or other material subjected to their action. in conjunctionwith grooved wheels E, mounted on the cam-shaft G. F are thelifting-cams, which, in the present example, are located at therespective ends of their shaft 0. The cams F are arranged to bearagainst anti-friction wheels G, mounted on the cutter-shaft I3, andthrough the medium of these wheels the cutter-shaft and the cutters arecaused to rise and fall at regular intervals by the action of the cams.At a suitable point in front of the cutters, and approximate to thefeed-board of the machine, are arranged my guide -rollers H I, whichhave a revolving motion, and occupy, respectively, a fixed and a looseposition. H is the fixed roller, which is mounted in brackets J, (or inthe machine-frame,) and the shaft of which bears a cog-wheel, K, thatconnects by an intermediate wheel, K, with one of two cog-wheels, L L,mounted on the cam and the cutter-shafts. By this means a revolvingmotion is imparted to the fixed roller H from the shafts B or 0, eitherof which may form the driving-shaft, and the gearing of the parts issuch that the guide-rollers H I have a like superficial speed to thecutters D. I designates the loose guide-roller, which is arranged inslotted brackets M, the upper ends of Whose slots a are open, so thatthe roller may be re moved.

The object of this arrangement is to admit of substituting for the looseroller I a roller of different form or diameter. The loose roller Irests on the fixed roller H. By its inherent weight and by thisarrangement the loose roller acquires a revolving motion.

The object of the rising and falling movement of the cutter-shaft B isto admit of removing or changing the position of the paper or othermaterial passing through the machine when the cutters are raised, inorder that only a portion of the paper is perforated. To admit of thismovement it becomes necessary that one of the guide-rollers H I alsoshould rise, together with the cutters, and to this end the roller I hasa loose arrangement, as before stated; and the roller, furthermore, isconnected with the cutter-shaft B by means of yokes O and arms P, sothat it partakes of the rising and falling movement of the cuttershaft.The yokes O are connected at one end to the machine-frame by means of apivot, 12, while to the other end of the yokes are fastened the arms I.The yokes lie above and across the cutter-shaft B, or may be connectedthereto if seen. fit, so that when the shaft is lifted it carries withit the yoke, the arms P, and the loose roller I. The yoke-arms P areprovided with a screw-thread, c, for part or the whole of their length,and are fastened to the yokes O by means of screw-nuts Q bearing againstthe yokes, so that the arms are locked in position, and at the same timeare rendered adjustable. The lower ends of the yoke-arms P are bent tothe form of hooks 1%, which are fitted to the gudgeons of the looseroller I, and form its immediate support. By

means of the nuts Q I am enabled to adjust the yoke-arms and the hooksIt accurately to the gudeons of the roller I, or to the gudgcons of aroller of different diameter, which may be used instead of the roller I.

The object of the hooks B is, as described, with respect to the slottedbrackets M, to admit of removing the loose roller I.

It is apparent that by the rollers H I a sheet of paper is guided to thecutters D in a perfectly straight line, inasmuch as shifting of thepaper to either side is prevented, and a straight line of perforation isinsured. The rollers H I also serve to smooth the paper, or to removetherefrom any irregularities that it may contain, so that it issubjected to the action of the cutters in a perfectly flat condition.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a machine for perforating paper and other materials, theguide-rollers H I, having a like surface speed to the cutters D, theupper one of which is arranged to partake of the rising and fallingmovement of the cutters, substantially as described.

2. The combination, with the cutter-shaft of a paper-perforatin gmachine, of the pivoted yokes 0, vertical arms I and feed-rollers H andI, substantially as shown and described, the said yokes and arms formingthe connection betweenthe feed-rollers and the cuttershaft, as setforth.

In testimony that I claim the foregoing I have hereunto set my hand andseal.

LEWIS FRANCIS. [L. s.]

Witnesses FRANCIS FoRBEs, CHAS. 'WAHLERS.

